A woman sees her primary care provider because of extreme fatigue for the past 2 months; she difficulty lifting even light objects. Her physician suspects myasthenia gravis. Which of the ff. tests should the nurse anticipate to confirm this diagnosis?

Correct Answer: D

Rationale: The correct answer is D: Tensilon test. The Tensilon test involves administering edrophonium (Tensilon) to temporarily improve muscle weakness in myasthenia gravis patients, confirming the diagnosis. Other choices are incorrect: A (Mestinon test) is not a standard diagnostic test for myasthenia gravis, B (Pulmonary function studies) are not specific for myasthenia gravis, and C (Quinine tolerance test) is not a relevant test for this condition.

Correct Answer: D

Rationale: The correct answer is D because antimetabolites interfere with the synthesis of nucleic acids (RNA and/or DNA), affecting multiple stages of RNA and DNA synthesis. This disruption hinders cell division and leads to cell death. Choices A and B are incorrect because antimetabolites do not specifically target cell division during the M phase or normal cellular processes during the S phase. Choice C is also incorrect because antimetabolites primarily target nucleic acid synthesis rather than altering the chemical structure of DNA or the binding between DNA molecules.

Correct Answer: D

Rationale: The correct answer is D (Downward) because it helps to maintain a clear airway for effective mouth-to-mouth respiration. By holding the victim's chin downward, you can ensure proper alignment of the airway, allowing the tongue to fall forward and prevent obstruction. Holding the chin forward (Choice A) may cause the airway to close, holding it backward (Choice B) may strain the neck, and holding it sideward (Choice C) may not provide optimal airway alignment. Holding the chin downward is the most effective and safe method for providing mouth-to-mouth respiration.

Correct Answer: C

Rationale: The correct answer is C: "You may feel a burning sensation when the dye is injected." This is important preprocedure teaching for carotid angiography because it prepares the patient for a common sensation during the procedure, helping to manage their expectations and reduce anxiety. This information is crucial for informed consent. Choice A is incorrect because carotid angiography is usually done under local anesthesia, not general anesthesia. Choice B is incorrect as carotid angiography typically takes about 1-2 hours, not several hours. Choice D is incorrect because all medical procedures, including carotid angiography, carry potential risks and complications, which should be discussed with the patient.

Correct Answer: C

Rationale: The correct answer is C: Assess apical heart before administering digitalis. This is important because digitalis can slow down the heart rate, so it is crucial to monitor the client's heart rate before giving the medication to prevent further decrease in cardiac output. Encouraging activities that engage the Valsalva maneuver (A) is contraindicated in clients with congestive heart failure as it can lead to increased intra-thoracic pressure and decreased venous return, worsening cardiac output. Encouraging the client to perform exercises (B) may also increase cardiac workload and exacerbate symptoms. Offering small frequent feedings (D) is generally beneficial for clients with congestive heart failure to prevent overeating and promote easier digestion, but it does not directly address the decreased cardiac output concern in this scenario.

Correct Answer: C

Rationale: The correct answer is C because it encourages the patient to provide more detailed information about the cause of their pain, which can help in understanding the underlying health issues. Choice A is judgmental and may make the patient defensive. Choice B is closed-ended and does not prompt for specific details. Choice D is directive and may not be well-received by the patient. Asking the patient to elaborate on what caused their pain allows for a more open-ended response, leading to a more thorough health history assessment.

Correct Answer: B

Rationale: The correct answer is B: Lung cancer. It causes the most deaths in women because it is often diagnosed at advanced stages when treatment options are limited. Breast cancer, although common, has a higher survival rate. Brain cancer is relatively rare compared to lung cancer. Colon and rectal cancer, while prevalent, do not surpass lung cancer in terms of mortality rates in women.

Correct Answer: A

Rationale: The correct answer is A because maintaining consistency in the order of drawing different types of insulin into the syringe helps prevent medication errors. When mixing insulins, drawing them in the same sequence ensures the correct dose and prevents contamination. Explanation: A: Following the same order ensures accurate dosing and minimizes the risk of mixing up insulins. B: Shaking the vial can cause air bubbles which can affect the accuracy of the dose. C: Storing insulin in the freezer can damage the medication and alter its effectiveness. D: Cloudiness in intermediate-acting insulin is normal and does not indicate it should be discarded.

Correct Answer: C

Rationale: The correct answer is C: limit daily alcohol intake. This is crucial for clients with cirrhosis as alcohol can exacerbate liver damage. Limiting alcohol intake helps prevent further harm to the liver and promotes overall health. Supplementation with multivitamins (choice A) can be beneficial, but not as essential as avoiding alcohol. Taking sleeping pills (choice B) may worsen liver function and is not recommended. Limiting contact at all times (choice D) is irrelevant to managing cirrhosis.